Should I add a Fast 90/92 or a ported 90/92??
03-16-2009, 06:49 AM
#1
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Should I add a Fast 90/92 or a ported 90/92?? I am looking to hit that 470 RWHP and think I will need a Fast to do it. What do you all think? My 03 Z06 makes 450 HP and 402 TQ now. Thanks in advance. 
03-16-2009, 06:58 AM
#2
I personally gained 21rwhp just by dropping on my unported FAST. This was on a completly stock engine, exhaust manifolds and all.
It such a simple bolt on that take immediate effect, Its worth the price. The first time you get on it, the smile on your face will have you wondering why you didnt do it sooner.
My wife didnt understand my happiness....haha
It such a simple bolt on that take immediate effect, Its worth the price. The first time you get on it, the smile on your face will have you wondering why you didnt do it sooner.
My wife didnt understand my happiness....haha
03-16-2009, 07:50 AM
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I would get a ported manifold and throttle body. I believe you will be happy with the results. There should be an improvement over the whole range and not just peak numbers!
03-16-2009, 09:59 AM
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even if you just touch up the runners a little bit...without dismantleing the intake....it will perform better than unported.
i say ported.
i picked up 20hp and 12ftlbs peak with my cam only....i can't imagine what it would have been with ported heads.
i say ported.
i picked up 20hp and 12ftlbs peak with my cam only....i can't imagine what it would have been with ported heads.
03-16-2009, 11:25 AM
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Either way you will gain...my choice would be to port match a FAST 92mm intake to your heads and throw on a Nick Williams 92mm TB. You could also do this with a 90/90 setup as well.
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02-04-2011, 03:05 AM
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Ended up with a LS2 throttle body unported/Fast 90 unported, but did a 383 stroker at the same time well. lol With that set up car made 488 RWHP and 458 RWTQ
